Angle grinder to cut rotor
By Paulm, Section Homebrewed Electricity Posted on Thu Nov 18, 2004 at 08:25:17 AM MST
Or pay for lathe ?

I'm doing an induction motor coversion. I need to get the rotor cut down to glue on the magnets. The magnets are no more than a quarter of an inch thick. I don't have a lathe to cut the rotor. Do you think I can cut down the area for the magnets with an angle grinder and leave the rotor alone where no magnet is mounted? I'm putting on 4 magnets evenly spaced.

Angle grinder to cut rotor | 4 comments (4 topical)

Re: Angle grinder to cut rotor (3.00 / 0) (#1) by juiced on Thu Nov 18, 2004 at 08:36:56 AM MST

Im not entirely sure about this answer, but i have built a couple 'fine' knives (more like shiny, bear-sized k-bar/katana) and i had nothing but grinders to use for cutting.     In my knive making experiance it produces a cheap blade due to temperatures inflicted on the metal. However, if you can keep the shaft cold; i think it would work as well as you can. (if you are carefull and patient it should turn out well)    Actually... i used a acet. torch to pierce the hand guard as well.     Hope the pic works. Canada's -Debatable- A.E./R.E Debate Site News, discussions and debates! www.juiced.ca

Re: Angle grinder to cut rotor (3.00 / 0) (#2) by juiced on Thu Nov 18, 2004 at 08:49:37 AM MST

This time it should. Canada's -Debatable- A.E./R.E Debate Site News, discussions and debates! www.juiced.ca

Re: Angle grinder to cut rotor (3.00 / 0) (#3) by juiced on Thu Nov 18, 2004 at 08:59:30 AM MST

i see no reason the pics arent working. might be my server, but other pics on OP served from my end are still working. (oh well, not my thread. I just wanted to show you that results can be had) Canada's -Debatable- A.E./R.E Debate Site News, discussions and debates! www.juiced.ca [ Parent ]

Re: Angle grinder to cut rotor (3.00 / 0) (#4) by baggo on Thu Nov 18, 2004 at 10:14:22 AM MST

Hi Paul, It would probably be easier, quicker and less messy to just cut 4 flats on the rotor with a hacksaw and clean up with a file. The metal laminations on the rotor are usually fairly soft and should be easy to cut. I'm assuming that your going to use flat rectangular magnets. John

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